PY Numbers

The Portsmouth Yardstick’ (PY) or Portsmouth handicap scheme is a term used for a number of related systems of empirical handicapping used primarily in small sailboat racing.  The handicap is applied to the time taken to sail any course, and the handicaps can be used with widely differing types sailboats.

This is the MKSC Portsmouth Number List for 2017, which is based on the 2017  RYA List.

The PNs for “missing” classes which are not on the RYA list are indicated with “*”, they may appear in the RYA “Historic PN List”.   *** = Portsmouth Number changed from last year

Dinghy Class PY Number
* 405 1089
420 *** 1110
Albacore *** 1041
Blaze *** 1023
* Bosun 1198
British Moth *** 1155
Buzz *** 1023
* Byte 1190
Byte C2 *** 1147
Cadet 1428
Comet *** 1204
* Comet Duo 1178
Comet Trio *** 1094
Devoti D-Zero *** 1029
Enterprise 1113
Europe 1145
Finn *** 1045
Firefly *** 1165
GP 14 *** 1133
Graduate *** 1129
* Gull (crewed) 1363
* Heron 1345
Kestrel *** 1035
Lark 1070
Laser *** 1097
Laser 2000 (a.k.a. “2000”) 1107
Laser 3000 *** 1085
Laser 4.7 *** 1200
Laser EPS *** 1030
Laser II 1065
* Laser Pico (single person, no jib) 1330
Laser Radial *** 1139
Laser Stratos *** 1095
Laser Vago XD 1074
* Leader 1115
Lightning 368 *** 1170
Megabyte 1060
Miracle 1210
Mirror (crew + spinnaker) 1383
* Mirror (single person + spin) 1365
Mirror (single person, no spin) 1369
National 12 1064
OK *** 1104
Optimist 1665
* Otter 1275
* Pacer 1193
* Redwing 1094
Rooster 8.1 *** 1045
RS 100 (8.4) *** 1008
RS 200 1047
RS Aero 5  *** 1120
RS Aero 7  *** 1071
RS Aero 9  *** 1024
RS Feva XL *** 1240
RS Tera Pro *** 1364
RS Tera Sport *** 1432
RS Vareo *** 1085
RS Vision *** 1128
Scorpion 1040
* Seafly 1087
* Signet 1265
Snipe *** 1095
Solo *** 1143
Solution *** 1087
Splash *** 1220
* Sport 14 1055
Streaker *** 1132
Supernova 1075
Tasar *** 1015
* Topaz Duo 1190
* Topaz Uno 1251
* Topaz Omega 1075
* Topper Xenon 1079
Topper *** 1347
Topper 4.2  1400
Wanderer *** 1180
Wayfarer *** 1102
* YW Dayboat 1200

For crewed boats sailing single-handed where a specific single-handed PN is NOT listed above a PN shall be calculated as follows:-

single-handed PN = crewed PN – (crewed PN / 63)